Mining-drill.



No. 655,292. Patnted Au 7, I900. J. WYNNE & v. v. HAIDACHER.- mumsnmu..'

Apphcation filed Mar. 9, 1900.) (No Model.)

2 Sheets-Sheet I.

No. 655,292. Patented Aug..7 1900.; J. WYNNE & V. V. HA|DACHER.-

MINING DRILL.

(Application filed Mar. 9, 1900.)

2 Sheets-Shoat 2 (No Model.)

Wihgzsszs mils vnzns co. movaumo maven. n. c.

NITED STATES PATENT 'FF cE.

JOHN WYNNE, OF PLYMOUTH, AND VITUS V. HAIDACI-IER, OF WVILKES- BARRE,PENNSYLVANIA.

MINING-DRILL.

SPECIFICATION forming part of Letters Patent No. 655,292, dated August7,1900.

Application filed March 9, 1900. Serial No. 8,034. (No model.) i

To all whom, it may concern:

Be it knownthat we, JOHN VVYNNE, of Plymouth, and VITUS V. HAIDACHER, ofWilkes- Barre, in the county of 'Luzerne and State of Pennsylvania,citizens ofthe United States, have invented a new and usefulMining-Drill, of which the following is a specification.

Our invention is an improved mining-drill, the object of our inventionbeing to provide an improved feed mechanism for feeding a hand or powerdrill while the same is in op eration and to provide an improved form ofdrill provided with separable sections, whereby it may be lengthened orshortened as required, improved couplings for the said sections, and animproved separable centering drill head and cutter.

Our invention consists in the combination, with a pivotedsupporting-box, of a sleeve swiveled therein, an endwise-movabledrillshaft in the said sleeve and revoluble therewith, rockersconnected, respectively, to the said box and said sleeve, means to cantthe journal-rocker feed-rings on the feed-shaft, and the bearing-ring onthe face of the canted journal-rocker and engaging the bearingring,whereby when the said shaft is rotated the same will be fed or movedendwise in the swiveled sleeve for the purpose of feeding the drill.

Our invention further consistsin the peculiar construction andcombination of devices hereinafter fully set forth, and pointed out inthe claims.

In the accompanying drawings, Figure 1 is a side elevation, partly insection, of a mining-drill provided with animproved automaticdrill-feeding mechanism embodying line 6 6 of Fig. 2.

our invention. Fig; 2 is a detail elevation of our improvedmining-drill. Fig. 3 is a similar view of the same at right angles toFig. 2. Fig. 4 is a sectional view of the feed mechanism. Fig. 5 is atransverse sectional view of the same, taken on the line 5 5 of'Fig. 1.Fig. 6 is a transverse sectional view taken on the Fig.7 is a detailperspective View of one of the feed-rings and its connecting-link. Fig.8 is a similar view of the journal-rocker. Fig. 9 is aisim'ilar view ofthe bearing-ring.

In the embodiment of our invention illustrated herein the usualfastening-bar 1 is provided with anopening 2, in whichfis pivoted thestud 3 of a turning-yoke at, the lafiter being thereby adapted'to turnto any required position on the fastening-bar. A supportingbox 5, whichis here shown as of cylindrical form, is provided with trunnions 6 onopposite shown, having a central opening 12, through,

which the supporting-box extends and ad apted to be canted on the saidsupporting-box. The latter is provided on one side, at right angles tothe arms 8,with'a lug 13, in which is seated a set-screw 14:, whichbears upon one side of the journal-rocker 11 and serves to cant thesame. A spring 15, which is herein shown as a coiled spring, bearsbetween the opposite side of the journal-rocker and a lug or ear 16,with which the supporting-box is provided on the side thereof oppositethe lug The ends of the spring 15 are seated on the journal-rocker andin the lug 16. We do not limit ourselves to the form of 'sprin g shownhere,as springs of other form may be employed in lieu thereof ifpreferred. The function of said spring 15 is to keep the journal rockerin engagement with the set-screw 14.

A tubular sleeve 17 is swiveled in the supporting-box and adapted torotate freely therein. Said tubular sleeve is provided at its inner endwith a head 18, annular in form,

which forms an enlargement thereof and enlarged head may be eitherformed inteand are adapted to be readily detached from said trunnions,being provided with open bearings 21, and near the ends of said rockingyokes 20 are open bearings 22-, which face in the opposite directionfrom the open bearings 21.

A drill-shaft 23, which may be of any suitable length, fits in thelongitudinal central bore of the sleeve 17 and is provided on one sidewith a longitudinal groove 24, which is engaged bya spline 25, withwhich said sleeve is provided. The outer end of said drill-shaft isadapted for the attachment of an operating-crank 26, as at 27, wherebysaid drillshaft may be rotated, and the latter is adaptedfor endwisemovement in the tubular sleeve 17, while said sleeve by reason of thespline and groove hereinbefore described is caused to rotate when thedrill-shaft is turned.

Feed-rings 28 29, the interior diameters of which are something inexcess of the diameterof the drill-shaft, are placed on the latter andare respectively connected to the opposite ends of the rocking yoke 20by means of links 30 31, the latter being longer than the former, thesaid links being otherwise substantially identicalin construction. Thefeedrings are provided each on-one side with an arm or lug 32 projectingtherefrom and hearing between the forked ends 33 of the links and havingjournal-pins 34 projecting from opposite sides of said arms or. lugs andhearing in central openings in the forkedends of the links, whereby saidrings are adapted. to

be canted by said links on the drill-shaft, so as to frictionally engageor clutch the drillshaft. Each of the links is provided with aspring-arm 35, of suitable form, which engages an o'fiset or shoulder 37on the inner side of the lug 32 of its respective feed-ring. Saidshoulders or oifsets are eccentric to the pivotal connection betweensaid. links and said feed-rings, and thereby said feed-rings arenormally canted by said spring-arms and normally in engagement with thedrill-shaft.

The feed-rings are oppositely disposed on the drill-shaft and arenormally canted in opposite directions thereof, as shown in Fig. l, andthe inner ends of their links are provided with oppositely-extendingjournal-arms 37, which are seated in open bearings 22 of the rockingyokes, which are mounted on the sleeve.

An annular bearing-ring 38 is fitted within an annular flange 39, withwhich the face of the journal-rocker is provided, and said annular ringand said face of said journalrocker are provided withoppositely-disposed annular races 40 for a series of bearing-balls 41,which reduce friction between said bearing-ring and said journal-rocker.The said bearing-ring is provided on opposite sides radially with pairsof lugs 42, between which are seated the inner ends of the links 30 31.

It will be understood from the foregoing description and by reference tothe drawings, more particularly to Fig. 1 thereof, that the rockingyokes and feed-rings are canted by the bearing-ring which engages theface of the journal-rocker and that when the drillshaft is rotated thecant or inclination of the journal-rocker, which is held against rotartion with reference to the st1pporting bo g 5,

will impart rocking motion to therocki-ng yokes20, which rocking motionwill be also communicated to thefeed-rings, the latter being cantedalternately in opposite directions, and thereby caused to frictionallyencrease the speed at which the drill-shaft is fed, as may be demandedby the nature of the rock or coal in which the drill is operated, andthis adjustment may be effected practically without interrupting theoperation of the drill mechanism.

Ourimproved drill is made in separable sections 43, adapted to bedetached from each other or connected together in series so as tolengthen the drill, as may be required by the progress of the work. Eachof said sections comprises the' usual central longitudinal shank 44 anda single-threaded spiral flight 45 of any suitable pitch. The meetingends of the separable sections of the drill are respectively formed withan angular conical socket 46 and a correspondingly-shaped projection 47,adapted to fit in said socket, where: by the. shanks of the sections areconnected together and the meeting portions of the spiral flight of saidrespective sections are provided, respectively, with oifset recesses 48and engaging portions 49 to contact therewith, as shown in Fig. 2,whereby the spiral flight of the sections of the drill when coupledtogether are continuous and uninterrupted.

The outer drill-section is provided with a clamping-head 50, comprisinga plane member 51, formed integrally therewith, and a clamp plate 52,connected with the member 51 by a set-bolt 53. An angular socket 54 isformed in the opposing sides of the members 51 52 in line with thecenter of the drill-shank,

in which socket is secured the inner end of a which is to enlarge theopening made by the i centering-bit 55.

It will be understood from the foregoing that the centering-bit andcutter-bit may be readily detached from the drill-shank and otherssubstituted in their stead when they become worn, broken, or in need ofsharpening at a very slight expense and without materially retarding theoperation of tlie drilling-machine.

It will be further understood that in some instances the fastening-bar 1will be disused and a post supported at its ends be employed in lieu ofsaid bar as a support for the drillfeeding mechanism, and we do not,therefore, limit ourselves in this particular, as any suitable means maybe employed for supporting the drill-feeding mechanism When the same isin operation.

It will be further understood that our improved feed mechanism may beused for other purposes than feeding a drill, and we do not, therefore,limit ourselves to the use of our said feed mechanism in connection witha drill.

Having thus described our invention, we claim- 1. In a drilling-machine,the combination of a support, a revoluble sleeve therein, and adrill-shaft adapted to move endwise in and rotate with said sleeve, of arocker on the support, means to cant the same, feed-rings on thedrill-shaft, and connections between said feed-rings and said cantedrocker, substantially as described.

2. In a drilling-machine, the combination with a support, a sleeverevoluble therein, and a drill-shaft adapted to move longitudinally inand rotate with said sleeve, of arocker on the support,means to cant thesame, rocker-yokes on the sleeve, feed-rings on the drill-shaft, andconnections between said feed-ring and the canted rocker, saidconnections engaging and actuated by the rocking yokes, substantially asdescribed.

3. In a drilling-machine, the combination with a support, a sleeveadapted to rotate therein, and a drill-shaft adapted to movelongitudinally in said sleeve, and to rotate therewith, of a rocker onthe support, means to cant the same, a bearing-ring engaging saidrocker, rocker-yokes connected to and rotated by the sleeve, feed-ringson the drillshaft, and links connecting said rings and rocker-yokes andbearing against the bearing-ring, substantially as described.

4. In a drilling-machine, the combination with a support, a sleeveadapted to rotate therein, and a drill-shaft adapted to movelongitudinally in said sleeve, and to rotate therewith, of a rocker onthe said support, a bearing-ring, ball-bearings between said ring andsaid rocker, means to cant the latter, rocking yokes connected to andadapted to rotate with the sleeve-links engaging the bear ing-ring andconnected to said rocking yokes, feed-rings on the drill-shaft,connected to and actuated by said links, and the springs to normallycant said feed-rings, substantially as described.

5. In a drilling-machine, the combination of a pivoted support, adaptedfor universal movement, a sleeve to rotate therein, a drillshaft adaptedto move longitudinally in said sleeve and to rotate therewith, a rocker,piv-' otally mounted on said support, a bearingring, revoluble on saidrocker, means to cant the latter, rocking yokes, connected to andadapted to rotate with the sleeve, links engaging the bearing-ring andconnected to said rocking yokes, feed-rings on the drill-shaft,connected to and actuated by said links, and the" spring to normallycant said feed-rings, substantially as described.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two Witnesses.

JOHN WYN NE. VITUS V. HAIDAOHER.

Witnesses:

JAMES C. MUNsEY, J OHN I. LABAG.

